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Radeon VII compatible with Mac?  

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craftsman
(@craftsman)
Estimable Member
Joined: 2 years ago
 

I'll wait for the fan fix and for Apple to list it in their eGPU support article. Then purchase.

2019 16" MacBook Pro (RP5500M) [9th,8C,H] + RX 5700 XT @ 32Gbps-TB3 (Razer Core X Chroma) + macOS 10.15.1 [build link]  

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crhendo
(@crhendo)
Active Member
Joined: 2 years ago
 

I'm travelling at the moment so won't be back to my Mac Mini and Radeon VII until the end of the week.

I just found this potential "gem" in an AMD community thread.

"Problem solved without RMA, the cooling connector on the GPU was not connected fully.

While I do feel a bit silly for checking on the GPU so late, I wouldn't expect something on it not to be fully functional right out of the box. I would certainly expect me not installing the GPU correctly, but that was ruled out long ago.

So if anyone has similar issues, check the bottom-right corner of the GPU (while facing the fans) and push down on the wired connector. This is not supposed to move or be removed at any point in time but due to shipping it might dislodge slightly."

While I know the symptoms are different, perhaps one of you could have a quick look at this and give it a try. I'm starting to become a little desperate.

Mac Mini 2018 i7 64GB 1TB
NetStor HL23T-Plus, Radeon VII, Dell U3818DW
OWC 4M2 4x2TB Intel 660P, CalDigit TS3+
OWC Thunderbay 6 48TB, G-Speed Studio 40TB


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kushNYC
(@kushnyc)
Eminent Member
Joined: 2 years ago
 

Looks like AMD previewed the Navi desktop series as rumored at their Computex keynote.  It’s called the AMD Radeon RX 5000 series.  Details everywhere - but you can look here or  here.  Looks promising.

 I hope they don’t forget about Radeon VII’s, thus far, lackluster optimization and support.

2018 MacBook Pro 15" 2.9Ghz i9 32GB Vega 20 + Razer Core X + AMD Radeon VII
ASUS ROG Zephyrus M GM501 2.2Ghz i7 16GB + Razer Core X + AMD Radeon RX 5700XT


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Juan C. Yunis
(@juan_c_yunis)
Reputable Member
Joined: 3 years ago
 

@kushnyc honestly i don't think they will forget, VII is still the most powerful card that they have at the moment, the only one competing with the RTX2080/2080 Ti (Obviously not in eGPU performance but Desktop), and the funny thing is that they decided to unveil the RX5700 targeting the RTX2070, so probably they are still taking more time to have RDNA reaching RTX2080/2080 Ti.

2018 Mac Mini Core i7 8700B 32GB RAM 512GB SSD + Razer Core X + AMD Radeon VII


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Kelvin Tan
(@kelvin_tan)
Estimable Member
Joined: 3 years ago
 

@crhendo was revamping the setup so tried reconnecting the RVII fans, but no go - still max fans on sleep/shutdown. If the problem really was a loose connector then like the link you had, the fans will be on full speed all the time. The fans work properly when the OS is booted and awake, which means the PWM signals are being sent properly.

Decided to break out the Razer Core X Chroma and see if i can squeeze in a small EKWB pump + 240mm rad (after switching the original PSU out to a Corsair SF750).

20190526 111530

It's not worth the hassle compared to the simpler breakout of the Mantiz Venus.

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20190528 142035

For those who have the capability to mount either a water cooling loop or system fans - you all can consider using the Aquacomputer Quadro computer to take over fan control duties - it comes with a thermocouple that you can affix to the back of the Radeon VII (I'm reading water temps since i'm on water cooling). Or you can even break out the Radeon VII's PWM fans connector, splice it to a proper 4-pin fan header, and connect to it.

20190528 142101
aquasuite 2019 05 28 12.47.40

I suspect the key issue with the board here is 12v rails from the 2x8pin pcie connectors are passed to the RVII fan header. When the egpu goes to sleep or shutdown, the PSU is still kept alive, but the pcie pins do not have any signal on the 3.3V standby state pullups (can only verify with something like an Agilent PCIE protocol analyser, maybe we can chip in to buy for the egpu.io mods a set since it's going to be very useful for their reviews). Thus the pwm signal is missing (board circuitry is powered down), but the 12v rails to the fan header is still active (max fans).

I'm just sticking with this setup and calling it a day. The RVII performs very well with low temps under water, and it was really fun to build a miniaturised standalone CLC.

This post was modified 2 years ago

X1 Yoga Gen3, X1 Tablet Gen 3, MacBook Pro 15" 2018
Razer Core X / Mantiz Venus
Asrock Radeon VII, Zotac Nvidia 1080Ti Amp Core Extreme, Powercolor Vega 56 reference (flashed to V64 bios)


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crhendo
(@crhendo)
Active Member
Joined: 2 years ago
 

@kelvin_tan thanks for taking the time to check this out. I suspected this would be the case but it was worth the try.

My Razer Core X setup has no problem handling shutdown and since around Beta 3 the fans only spin up to around 70% during sleep. Odd they you see different behavior.

I live in hope!

Mac Mini 2018 i7 64GB 1TB
NetStor HL23T-Plus, Radeon VII, Dell U3818DW
OWC 4M2 4x2TB Intel 660P, CalDigit TS3+
OWC Thunderbay 6 48TB, G-Speed Studio 40TB


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Kelvin Tan
(@kelvin_tan)
Estimable Member
Joined: 3 years ago
 

@crhendo no probs I was hoping that the loose pin would be the issue too. I think the reason why your shutdown works is because you are on a Mac Mini.

Thiswas something I started noticing after i started using the 12v rails for the Aquacomputer and RGB.

When my MBP goes to sleep OR shutdown, the 12v rails are live. I suspect this is because the Mac needs the PSU alive to charge, whether sleeping or shutdown. The only time the PSU really shuts off is when I unplug the tb3 cable, or press the power switch on the PSU itself.

For the Mac mini, your power source is from the 2pin AC plug, so while on sleep the tb3 still sends a signal to the enclosure to stay alive, on shutdown it allows the egpu to power down entirely since the Mac mini does not draw power from the egpu.

So, like the Reddit image above, PSU alive +  no pcie signal to the Radeon vii = fans blast.

This post was modified 2 years ago

X1 Yoga Gen3, X1 Tablet Gen 3, MacBook Pro 15" 2018
Razer Core X / Mantiz Venus
Asrock Radeon VII, Zotac Nvidia 1080Ti Amp Core Extreme, Powercolor Vega 56 reference (flashed to V64 bios)


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Arden Shibley
(@arden_shibley)
Trusted Member
Joined: 2 years ago
 

Would it be possible to bridge the RVII fan header to the Core X fan pins? So the RVII fans run when the Core X deems it to be under load?

2018 15" MBP, 2.6GHz 32GB 1TB Vega Pro 20, Razer Core X, AMD Radeon VII (Waiting for OS X Drivers), MSI Radeon RX Vega 64 Wave


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Kelvin Tan
(@kelvin_tan)
Estimable Member
Joined: 3 years ago
 
Posted by: Arden Shibley

Would it be possible to bridge the RVII fan header to the Core X fan pins? So the RVII fans run when the Core X deems it to be under load?

@arden_shibley The problem with core X fan header is it's a DC header, not pwm. Thus if you splice the r7 fans to the core X header, it will always be on full speed.

The second problem is it's not advisable to regulate fans based on tb3 chipset temps, especially when you have no control over curves, etc. You will definitely cook your card  very fast.

X1 Yoga Gen3, X1 Tablet Gen 3, MacBook Pro 15" 2018
Razer Core X / Mantiz Venus
Asrock Radeon VII, Zotac Nvidia 1080Ti Amp Core Extreme, Powercolor Vega 56 reference (flashed to V64 bios)


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Arden Shibley
(@arden_shibley)
Trusted Member
Joined: 2 years ago
 

Dang. Thanks!

Are you loving having it on water? EK block? Worth it?

This post was modified 2 years ago

2018 15" MBP, 2.6GHz 32GB 1TB Vega Pro 20, Razer Core X, AMD Radeon VII (Waiting for OS X Drivers), MSI Radeon RX Vega 64 Wave


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